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Finding the Fourth Proportional to 8,560.79, 12,841.18 and 2,320.80

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Solution

The fourth proportional to 8,560.79, 12,841.18 and 2,320.80 is: 3,481.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.79 : 12,841.18 = 2,320.80 : x
  2. Step 2: Convert to fraction form
    8,560.79/12,841.18 = 2,320.80/x
  3. Step 3: Cross multiply
    8,560.79x = 12,841.18 × 2,320.80
  4. Step 4: Simplify right side
    8,560.79x = 29,801,734.73
  5. Step 5: Solve for x
    x = 29,801,734.73/8,560.79
  6. Step 6: Final answer
    x = 3,481.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.